Home / 8,106.20-11,188.65-5,280.62

Finding the Fourth Proportional to 8,106.20, 11,188.65 and 5,280.62

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Solution

The fourth proportional to 8,106.20, 11,188.65 and 5,280.62 is: 7,288.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,106.20 : 11,188.65 = 5,280.62 : x
  2. Step 2: Convert to fraction form
    8,106.20/11,188.65 = 5,280.62/x
  3. Step 3: Cross multiply
    8,106.20x = 11,188.65 × 5,280.62
  4. Step 4: Simplify right side
    8,106.20x = 59,082,953.02
  5. Step 5: Solve for x
    x = 59,082,953.02/8,106.20
  6. Step 6: Final answer
    x = 7,288.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.